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ref: unread dot icon

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relikd
2025-12-08 21:21:29 +01:00
parent 82ae18c8a5
commit 96884474ac
1 changed files with 18 additions and 41 deletions
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59
baRSS/Helper/DrawImage.m
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@@ -23,26 +23,18 @@ static inline const CGFloat ShorterSide(NSSize s) {
return (s.width < s.height ? s.width : s.height); return (s.width < s.height ? s.width : s.height);
} }
/// Perform @c CGAffineTransform with custom rotation point /// Flip coordinate system
// CGAffineTransform RotateAroundPoint(CGAffineTransform at, CGFloat angle, CGFloat x, CGFloat y) { static void FlipCoordinateSystem(CGContextRef c, CGFloat height) {
// at = CGAffineTransformTranslate(at, x, y); CGContextTranslateCTM(c, 0, height);
// at = CGAffineTransformRotate(at, angle); CGContextScaleCTM(c, 1, -1);
// return CGAffineTransformTranslate(at, -x, -y);
//}
#pragma mark - CGPath Component Generators
/// Add circle with @c radius
static inline void PathAddCircle(CGMutablePathRef path, CGFloat radius) {
CGPathAddArc(path, NULL, radius, radius, radius, 0, M_PI * 2, YES);
} }
/// Add ring with @c radius and @c innerRadius /// Scale and translate context to the center with respect to the new scale. If @c width @c != @c length align top left.
static inline void PathAddRing(CGMutablePathRef path, CGFloat radius, CGFloat innerRadius) { static void SetContentScale(CGContextRef c, CGSize size, CGFloat scale) {
CGPathAddArc(path, NULL, radius, radius, radius, 0, M_PI * 2, YES); const CGFloat s = ShorterSide(size);
CGPathAddArc(path, NULL, radius, radius, innerRadius, 0, M_PI * -2, YES); CGFloat offset = s * (1 - scale) / 2;
CGContextTranslateCTM(c, offset, size.height - s + offset); // top left alignment
CGContextScaleCTM(c, scale, scale);
} }
@@ -74,25 +66,7 @@ static void DrawGradient(CGContextRef c, CGFloat size, NSColor *color) {
} }
#pragma mark - CGContext Drawing & Manipulation #pragma mark - RSS Icon (rounded corners)
/// Flip coordinate system
static void FlipCoordinateSystem(CGContextRef c, CGFloat height) {
CGContextTranslateCTM(c, 0, height);
CGContextScaleCTM(c, 1, -1);
}
/// Scale and translate context to the center with respect to the new scale. If @c width @c != @c length align top left.
static void SetContentScale(CGContextRef c, CGSize size, CGFloat scale) {
const CGFloat s = ShorterSide(size);
CGFloat offset = s * (1 - scale) / 2;
CGContextTranslateCTM(c, offset, size.height - s + offset); // top left alignment
CGContextScaleCTM(c, scale, scale);
}
#pragma mark - RSS Icon (rounded)
/** /**
@@ -251,19 +225,22 @@ static void Appearance_Article(CGRect r) {
/// Draw unread icon (blue dot for unread menu item) /// Draw unread icon (blue dot for unread menu item)
static void DrawUnreadIcon(CGRect r, NSColor *color) { static void DrawUnreadIcon(CGRect r, NSColor *color) {
CGFloat size = ShorterSide(r.size) / 2.0; const CGFloat radius = ShorterSide(r.size) / 2.0;
CGContextRef c = NSGraphicsContext.currentContext.CGContext; CGContextRef c = NSGraphicsContext.currentContext.CGContext;
CGMutablePathRef path = CGPathCreateMutable(); CGMutablePathRef path = CGPathCreateMutable();
SetContentScale(c, r.size, 0.7); SetContentScale(c, r.size, 0.7);
CGContextTranslateCTM(c, 0, size * -0.15); // align with baseline of menu item text CGContextTranslateCTM(c, 0, radius * -0.15); // align with baseline of menu item text
// outer ring (opaque)
CGContextSetFillColorWithColor(c, color.CGColor); CGContextSetFillColorWithColor(c, color.CGColor);
PathAddRing(path, size, size * 0.7); CGPathAddArc(path, NULL, radius, radius, radius, 0, M_PI * 2, YES);
CGPathAddArc(path, NULL, radius, radius, radius*.7, 0, M_PI * -2, YES);
CGContextAddPath(c, path); CGContextAddPath(c, path);
CGContextEOFillPath(c); CGContextEOFillPath(c);
// inner circle (translucent)
CGContextSetFillColorWithColor(c, [color colorWithAlphaComponent:0.5].CGColor); CGContextSetFillColorWithColor(c, [color colorWithAlphaComponent:0.5].CGColor);
PathAddCircle(path, size); CGPathAddArc(path, NULL, radius, radius, radius, 0, M_PI * 2, YES);
CGContextAddPath(c, path); CGContextAddPath(c, path);
CGContextFillPath(c); CGContextFillPath(c);
CGPathRelease(path); CGPathRelease(path);